Trimming and burnishing machine



(Model.) 2 Sheets-Sheet 1.V

l C.v H. SWAN. d TRIMMI-NG AND BURNISHING' MACHINE. l N0. 276,925.Patented May 1, 1883f www? u um

N. PETERS; vhewulhugrapher, washlngiun. D. C.

` tented May-1,1883.

o. H. SWAN.

l -TRIMMING AND BURNISHING MACHINE. No. 276,925.A

(Model.)

N. PETERS, mmmmmpher. wn-hingim. n.1;

NUNITED STATES PATENT QEEICE.

OALEB SWAN, OF WORCESTER, MASSACHUSETTS.v

TRIMMING AND BURN'ISHING MACHINE.

SPECIFICATION forming part of Letters Patent No. 276,925, dated May 1,1883. Application filed August 23, 1882. (Model.)

ltion, such as will enable others skilled in the art to make and use thesame, reference being had to the accompanyingdrawings, which form a partof this specification, and to the letters of reference marked thereon. t

The object of this invention is to produce a machine with a combinationof cutters `and a combination of burnishers attached touniversal-jointed arms, and so balanced-and arranged as to trim theedges, welt, heel, and feather,- edgeof boots and shoes and burnish thesame, combined in one machine. constructed that the operator can applythe combination of cutters and combination of burnishers at any angle toany` desired part of the fore edge or heel of a, revolving boot or shoeconfined and adjusted to the end of a revolving spindle, while thefaceof the boot or shoe revolves in` opposite direction to that 'of thecutters and burnishers, thereby making a friction movement, which isvery essential for the production of a clean, smooth cut and a goodburnished edge.` I attainthese objects by the mechanism illustrated inthe accompanying:

drawings, in which- 1 Figure l, Sheet 1,is aside view ofthe machine,

Fig. 2, Sheet I, is a' sectional view of one ofv the universal-jointedarms. Fig. 3, Sheet 2, is a front View of the machine. Fig. 4, Sheet 2,is a sectional view of the burnishers, spring, friction set-screw,handles, and arbor on which they are adjusted. Fig. 5, Sheet 2, is asectional view of the cutters, guide-spring, handles, and arbor on whichthey are adjusted. Fig. 6, Sheet 2, is an end view ofthe heel-cutter.Fig. 7, Sheet 2, is an end view of the edgecutter, showing the fourrecesses. Fig. 8, Sheet 2, is a view of the welt-cutter. Fig.l 9, Sheet2, is a view of the feather-edge knife, showing its gage and its fourraised sections,

on which the cutters are located. Fig. l0,`

Sheet 2, represents a face viewof the guide, gage, and shield combinedin one piece, show- 'Ihe machine is so ing the two openingsa a, wherebyit clears itself from dust, and also the raised bearlng n' around itscenter for reducing its friction; and

Fig. l1, Sheet 2, is a side sectional view of the same, showing therecessed face a, outstand-' ing' rim o, and sleeve m. Similarlettersrefer to similar parts throughout the several views.A

lThe standard A and the two arms B and B', arranged at right angles witheach other, support standard-bearings C and C', to which they arebolted. The standard A may be fast ened in a platform or a low table.

D denotes a spindle adjusted in bearings C, and projecting out parallelwith arm B', and on `this spindle are adjusted pulley I and boot or shoeE, which receive motion by means of beltl?l from pulleyHon the driving-shaft F. The driving-shaft F of the machine is adjusted in the beari ngs C', and on this sh aft there are theloose and driving pulleys G andG' and pulley Il (which conveys power to the pulley I on the spindle D)and 'the reversible yoke J, provided with a long slot, K. Saidyoke isadjusted midway of said slot to swing looselyin the bearings, and adouble-grooved wheel, L, is adjusted on said driving-shaft to revolvewith it in said slot. 'Ihis double-grooved pulley conveys power by beltWin one direction, and by belt W' in the other direction, for thepurposes hereinafter set forth. Swiveljoint 0' connects rod P to oneendof the reversible yoke J, and swivel-joint 0" connects rod P' at theother end of said yoke. rod P connects with a jointed yoke, It, and rodP' withjointed yoke R'. In thesejointed yokes there are double-groovedpulleys S and S', which receive power by belts W and W' from thedouble-grooved wheel L. Connected to these jointed yokes R and It' byswivel-joints T and T' are iron rods U and U'. The other ends of theserods connect the forks Y and Y' by ball-and-socket joints Vaud V', andiuthese forks are adjusted the arbors X and X'. 0n arbor X are adjustedthe cutters N, guides, and handles 12, and on arbor X' areadjusted theburnishers N', guide, and handles 12', and on the end of each of thesearbors X and X' are grooved pulleys Z and Z', which revolve in the forksY and Y'. Pulley Z receives power from double-grooved pulley S, locatedin yoke It, by

The other end of 8.5

belt M, and pulley Z receives power from pulley S', located in yoke R',by means of belt M; and to keep these belts in their position there arebelt-guides, designated by 6,7, and 8 in one section of the universaljointed arms, and 6 7' 8 for the other section. By this devisedarrangement I have two sets of universal-jointed arms-one at each end ofthe reversible yoke Jone of which conveys power to the cutters, and theother conveys power to the'burnishers, and they are so evenly balancedthat they can be readily reversed or exchanged one. for the other andbrought to the work at any desired angle or point of the fore edge orheelof the revolving boot or shoe adjusted to the aforesaid revolvingspindle D, and driven by belt F or gear from the driving-shaft F of themachine.

The heel and fore-edge cutters have a coinbination of knives in each.

First, the fore-edge critter is a combination of three sets ot' knives,(see Figs. 7, S, and 9,) namely, the edge-knife, (see Fig. 7,) whichtrims the outer edge of the sole. Itis a cylinder with four slots, b b bb, formed in one end, and fifteen (more or less) grooves, c c c, formedin its face at an angle of aboutforty-tive degrecs, so that the outeredges form fifteen (more or less) knives, o c c, runningin an angle ofabout forty degrees from end to end across its face, the formation ofwhich producesasmooth, clean, drawing cut. It is located on the arboratl. (SeeFig.5.) Next,thewelt-knife(seeFig. 8) is a thin circular pieceof steel with its inner edge beveled outward,on which areformed more orless teeth, cee, cut on an angle of about fortytve degrees across itsperiphery, and having their cutting-edges next to the ed ge-cutter, to4which it is attached by screwsor otherwisein the holesffff, the teeth orknives projecting beyond those of the edge-cutter, so as to allow themto trim and throw the chips from the welt. It is located in thecombination on the arborX'at 2. (See-Fig. 5.) The next is thefeather-edge knife, (see Fig. 9,) which is composed ot' a cylinder madeto tit loosely on the arbor, so as to slide to and fro, having fourraised sections on its inner end, which clutch intofourcorrespondingslots,b b b b, in theend of the edge-knife cylinder. rEhe knives 3 3 33l are formed on the face of the outer ends of the raised sections on anangle, and around the ends is a ring, l, which serves as a gage 'intrimming the feather-edge. It is located in the combination on the arborX at 3, (see Fig. 5,) and by means of the spiral spring@l and set-screwh in its rim it is made to conform to any thickness of sole thatisdesired.

Second. The heel-cutters are a combina-` 'lhe edge-cutter, i

tion of two sets of knives. (see Fig. 6, which is an end view,) theteeth of which are formed the same as those-ot' the fore-edge cutter, islocated on the arbor X at 5, (see Fig. 5,) and the welt-cutter, locatedat 4, is formed the same as the weltcutter above described and shown.These cutters can be formed or made so as-to produce any desired formof'edges. The guide gage and shield (see Figs. 10and 1`-l) is a thinpiece oi' circular iron having an outstanding sleeve,.m, and the face uis recessed to allow the projecting rim O,with which itis provided, tocap over the welt-cutter, thereby shielding the upper-leather frominjury. It is adjusted loosely on the arbor X (see Fig. 5) at fn, so asto rollas a wheelindependent of the cuttersin the groove between theupper and the sole, thereby serving as a guide and also as a gage. As

,it regulates the cut ofthe cutters by keeping them at a uniformdistance from the boot or shoe, the outstanding sleeve m serves toprevent or preserve it from wabbling. The handles 12 12 are of wood,from which project straight pieces of flat iron 13 13, at the ends ot'which are bearings 14'14 in which the sleeve m ot' the before-mentionedguide-gage and shield revolves on the arbor X. (See Fig. 5.) Thehandles, with the irons, are fastened together by a bolt, 10, and nuts17 18 19 20, and a screw, 15, in the end of the arbor. 0n this arbor areadjusted in their order, iirst the guide gage and shield at n, nexttherweltknife 2, next the foreedge knife 1, next the feather-edge knife3, next the spiral spring i, next in the bearing, the guide gage andshield n, and next the heel-trimmers 4 and 5. The end of the arbor isadjusted in the fork Y. (See Fig. 5.)

The burnishers are three in number-iiamely, lthe fore edge N is in twocylinders, and the heel N one.

First. The fore-edge burnishers are a combination of two cylinders, 21and '24. (See Fig. 4.) Cylinder 21 has a projecting lip or rim, 22,formed on one end. The other end is inserted in the cup 23 in the end ofcylinder 24, which slides to and fro on the arbor X', and it is kept inposition by the spiral spring i and a keyway, 26, cut in the innerbearing fitted to a corresponding boss or rib, 27, ou the arbor.Cylinder 2i burnishes the fore edge of the shoe, and the projecting lipor rim 22 burnishes the welt, and the inner face, 23, of the cupburnishes the feather-edge. By this arrangement it will adapt itself toany thickness of sole.

Second. The heelburnisher 29 is a cylinder provided with a lip or rim,30. (See Fig. 4.) Cylinder 29 burnishes the edge, and the lip or rim 30burnishes the inner edge of the heel. The fore-edge burnishers areheated bya graduating-screw, 31, and the heel by screw l 32, inserted inthe irons 13', by being in contact with the outer ends of the cylinderswhile at great speed. f

The handles 12 12 are with irons 13 13 inserted in them, (see Fig. 4,)on one of which there is a lip or shield, 33, projected down from thenipple-bearin g, which prevents the burnisher from coming in contactwith the upper-leather, and also servesas a guidein the crease. c

IOC

IIO

Havingthus described myinventiomwhat I l and F', for the purpose otlconveying power to the cutters, burnishers, and boot or shoe Esimultaneously, substantially as shown and described, and for thepurposes specified.

2. The combination of the arm B', bearing C', and drivin g-shaft F, the.reversible yoke J, provided with slot K, wheel L, belts W and W',swivel-joint 0' and 0", rods P and P', yokesR and R', pulleys S and S',swiveljoints T and T', rods Uand U'` ball-and-socket joints V and V',forks Y and Y', pulleys Z and Z', belts M and M', and arbors X and X',con vey- Aing powerto the cutters N and burnisliers N' simultaneously,with the continuous revolving boot or shoe E on spindle I),substantially as shown and described, for the purpose specified.

3. The combination, with the weltknife, of

I the guide gage and shield; provided with sleeve m and rim O,substantially as shown, 4and for the purposes set forth.

4. In combination with the edge-knives, the feather-edge knife providedwith the raised sections g g g g, knives 3' 3' 3' 3', and ring Z,-substantially as shown and described..

5. In combination with arbor X, the handles 13 13, provided withbearings 14 14, bolt 10, nuts 17 18 19 20, screw 15, and, in theirorder, the guide gage and shield n, the Welt-knife 2, the fore-edgeknife 1, the feather-edge knife 3, spiral spring` i, set-screw 7L, guidegage and shield n, and heel-trimmers 4 and 5, substantially as shown anddescribed.

6. In combination with arbor X', provided with boss 27, the handles1313', one of which is provided with a projection, 33, land, in theirorder,the fore-edge burnisher 21,provided With cup 23 and keyway 26,spiral spring fi", the heel-burnisher 29, provided with lip 30, and thegraduating-screws 3l and 32, substantially as shown and described, andfor the purposes spe'cied. v

GALEB H. SWAN.

Witnesses:

J ONA. LUTHER, THOMAS BOND.

